On Tue, Apr 08, 2008 at 01:53:12PM -0700, Gautam Iyer wrote:
>> One of the items I planned to discuss is why Vim has no floating point
>> support. Well, this turned into actually implementing it.
>>
>> The main problem with floating point is that the usual notation already
>> has a meaning:
>>
>> echo 123.456
>> 123456
>>
>> That is because "." is the concatenation operator, and numbers are
>> automatically converted to strings.
>>
>> I considered a few alternatives:
>>
>> 123,456 used for function arguments
>> float("123,456") too verbose
>> #123.456 has a meaning after == and !=
>> $123.456 confusion with $ENV
>>
>> The best I could think of was &123.456. It's a bit obscure, you need to
>> get used to it. But it works.
>>
>> echo &123.456e-3
>> 0.123456
>>
>> Feel free to suggest something better, but make sure it doesn't already
>> mean something in any context in Vim script.
>
> How about just adding an "f" at the end of the number?
>
> echo 1.23f
>
> This doesn't seem to mean anything to Vim currently. (I get an error
> when I try and echo it).
I forgot to mention: Also
echo 1.23e-3
can be used for the E notation. (The trailing f is not necessary).
GI
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